Private Practice, Lausanne, Switzerland.
Thinking Perio Research, Periocentrum Bilbao, Private Practice, Bilbao, Spain.
Clin Oral Implants Res. 2022 Jun;33 Suppl 23:109-124. doi: 10.1111/clr.13888.
To identify the factors associated with buccal peri-implant soft tissue dehiscences (BSTDs) and their frequency of occurrence.
Randomized controlled trials, controlled clinical trials, cohort studies, and case series assessing the frequency of occurrence of BSTD were included. BSTD was defined as an apical migration of the peri-implant soft tissues of ≥1 mm from the baseline examination (final restoration) or in comparison with the adjacent or contralateral natural tooth. Frequency distributions of BSTD related to the presence or absence of any surgical, prosthetic, or anatomic factor that may have contributed to the development of BSTD were recorded. Random-effects meta-analyses using odds ratios (OR) were performed to investigate the association of certain factors with the development of BSTD.
Twenty-four articles were finally included belonging to 22 clinical investigations. Patients at higher risk of developing BSTD were associated with thin biotype (OR = 2.85 [1.40, 5.8], n = 5, p = .003) and with buccally placed implants (OR = 14.37 [4.58, 45.14], n = 3, p ≤ .001). Patients without connective tissue grafting (CTG) had greater odds of developing BSTD (OR = 9.00 [3.11, 26.02], n = 5, p ≤ .001), while buccal bone plate thickness of <1 mm and immediately placed implants were not associated with greater BSTD (OR = 1.29 [0.35, 4.77], n = 2, p = .704 and OR = 1.56 [0.46, 5.26], n = 4, p = .477, respectively). The frequency of occurrence of BSTD varied across the included studies with a range from 0% to 61%.
Thin tissue biotype and buccally placed implants were associated with BSTD, whereas CTG seemed to have a protective effect. Thin buccal plates and immediately placed implants did not demonstrate a higher risk of BSTD.
确定与颊侧种植体软组织缺损（BSTD）相关的因素及其发生频率。
纳入了评估 BSTD 发生频率的随机对照试验、对照临床试验、队列研究和病例系列研究。BSTD 定义为种植体周围软组织从基线检查（最终修复体）或与相邻或对侧天然牙相比，向根尖方向移动≥1mm。记录了与可能导致 BSTD 发生的任何手术、修复体或解剖因素的存在或缺失相关的 BSTD 相关频率分布。使用比值比（OR）进行随机效应荟萃分析，以研究某些因素与 BSTD 发生的相关性。
最终纳入了 24 篇文章，涉及 22 项临床研究。发生 BSTD 风险较高的患者与薄型生物型（OR=2.85[1.40,5.8]，n=5，p=0.003）和颊侧植入物（OR=14.37[4.58,45.14]，n=3，p≤0.001）相关。未行结缔组织移植（CTG）的患者发生 BSTD 的可能性更大（OR=9.00[3.11,26.02]，n=5，p≤0.001），而颊侧骨板厚度<1mm 和即刻植入物与更大的 BSTD 无关（OR=1.29[0.35,4.77]，n=2，p=0.704 和 OR=1.56[0.46,5.26]，n=4，p=0.477）。纳入研究中 BSTD 的发生频率差异很大，范围为 0%至 61%。
薄组织生物型和颊侧植入物与 BSTD 相关，而 CTG 似乎具有保护作用。薄的颊侧骨板和即刻植入物并未显示出更高的 BSTD 风险。
